Cleansing and disinfecting fluid.



' s'r-ATEs PATENT oFFIcE.

isnnon 'I.. MEAN, orisnooxnmn, MASSACHUSETTS, nssrenon To 11 0 man Lanna cnnmcancomrmy, or nosrou, mnssncnosnrrs, a conroaa'rron or mass- CHUSETTS.

No Drawing.

'1 To all 107mm it may concern:

Be it known that I, IsADon L. Human, a citizen of the United States, and a resident of Brookline, county of Norfolk, State of Massachusetts, have invented an Im- 'provement in Cleansing and Disinfecting disinfecting fluids, and has for its object the production of a liquid which will be suitable for use in the laundry, and also which will be an efficient paint remover, varnish remover, and enamel remover, which will be non-poisonous, so that traces of said material left upon laundry, cooking utensils, dishes, and the like, willproduce no unfavorable effects upon'the subsequent use. of such articles, or upon the food contained or cooked in such dishes, utensils, etc.

In preparing the composition which forms the subject matter of this invention, I preferably-prmzeed as follows: Into a suitable closed mixing vessel I introduce from-:80 to 82 pounds of substantially pure water, at ordinary temperature. I then introduce, while stirring, 9.8 pounds of potassium hydrate (K011), and preferably the pure article, as distinguished from the crude or commercial varticle.

- tinued until substantially the entire amount of ,potassium' hydrate has been dissolved. During this time a small amount of heat is generated in the solution. As soon as the potassium hydrate has been dissolved, or even before the last traces have been' dissolved, I add. about 2.5 ounds of ammonium chlorid (sal ammomac) and continue the stirring. The temperature thereupon lrises to a still further degree. I thereu on fadd about 1.25 poundsof potassium car o- Lnate (K430 and continue the stirring un I til this is'dissolved. I then add 4.95 to 5 pounds of alcohol, for example methyl alcohol, although homologues thereof 'may be employed if desired.

the material has sufiiciently softened the Specification of Letters Patent."

The agitation is con- The completed mixture" is found to be a.

tities of the com ound.

Y GLENSING AND DISINFECTING FLUID.

Patented Mar. 30,1915.

Application filed m 7, 1913. Serial No. 766.069. I

paint, etc., I may then scrub off the entire mixture, by the use of a wet sponge or wet scrubb ng brush, and the water-thereby added prevents furtheraction' of the compound. By this means if so desired, I may remove only the outer coat of .paint or varnish,

while leaving the inner coat substantially intact. From wood having a large number I of coats of paint I may remove any desired number in this manner.

The compound does'notgreatly affect the natural color of wood by discoloration, and

does not raise the grain of wood, for example oak wood, and thereby avoids-one of the great objections to thgamany alkaline paint removers heretofore employed.

I have found that if ammonium chlorid 1n materially different proportions, than given herein, is employed, that wood is dis- .colo'red, the grain thereof is raised, or that the compound will not act equally well to soften paint, varnish, and enamel. That is, if materially less than the stated amount of vammonium chlorid is employed, the completed mixture may soften some paints but will not soften enamels. -I therefore call -at-' te'ntion to the fact that my compound readily penetrates paint, varnish, enamel, etc., which is a' distinct advantage over most of the compositions heretofore employed as paint removers. In addition to the above advantages, the ammonium chlorid in these proportions, acts as an emollient of the cansticity of the potassium hydrate and prevents burning the wood.

' For laundry (pur oses, and for ordinary household use as a etergent it is preferable to dilute the compound with water before use, although the compound, even at full strength, does not weaken or injure ordinary fabrics.

The formula. above given maybe somewhat modified, without departing from the spirit of the invention.

While in the above example, the proportion'sare stated in terms of pounds, it is obvious that any other unit of. measure or weight may be similarly employed, if it is desired to prepare larger or smaller quan- I desire toca attention to each of these ingredients has been reviously employed in detergent compoun ,hbutlnot the" fact that i tofore employed can the same results be sc j cured, as with the compound which forms the subject matter of my present invention.

Claims: T c I 1. A cleaning fluid comprising a solution of from 9% to 11% of a caustic alkali, from 1% to 2% of alkali carbonate, from 2% to 3% of an ammonium compound, and from 4% to -6% of an alcohol. 2'. A cleaning fluid comprising an aqueous solution containing about 9.8% of potassium hydrate, 2.5% of ammonium chlorid, 1.25% of potassium carbonate, and 4.95% v of alcohol.

' 3. A cleaning fluid comprising an aque-cous solution containing active alkali hydrate and ammonium chlorid, said alkali hydrate being in theproportion of four to one of the ammonium chlorid, in combination with alkali carbonate in the slightly smaller proportions than the ammoma gas in solution, and alcohol. I

4. A cleansing fluidcomprising from 9% to 11% of a caustic alkali, from 2% to 3% sal ammoniac, from 1% to 2% of alkali carbonate, from 4% to 6% of alcohol, and from 84% to 78% of substantially pure water.-

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

g ISADOR L. HALMAN.

Witnessesi CARL R. JONSSON, FRANK A. BEAN. 

